CO2 Indicator Clip On Vial

CO2 Indicator Clip On Vial

The CO2 Indicator Clip On Vial is a hang-on drop checker that helps you monitor and maintain healthy CO2 levels in your aquarium. It suits planted-tank keepers and anyone who wants a quick visual check on CO2 without guesswork.

Key Benefits

• Gives a visual indication of the CO2 level in your aquarium, so you can make informed decisions about CO2 adjustments and water replacement.
• Clear colour-changing indicators make CO2 levels easy to interpret at a glance.
• U-shaped design hangs on the edge of the tank, so there are no suction cups to fit, reposition or replace.
• Helps you keep conditions suitable for both aquatic plants and fish.
• A simple, hassle-free setup that saves time and effort.

How to Use

Hang the vial on the edge of your aquarium using its U-shaped design. It stays in place without suction cups. Check the colour-changing indicator regularly. A glance tells you whether your CO2 level needs attention, and you can then decide whether to adjust CO2 or carry out a water replacement.

Suitable For

• Aquarium keepers who want to monitor and maintain optimal CO2 levels.
• Planted aquariums where CO2 is a key part of plant growth and tank balance.
• Hobbyists who prefer a hang-on drop checker to a suction-cup-mounted one.

Compatibility

The U-shaped hang-on design attaches to the edge of your aquarium, so no suction cups or fixed mounting are needed.

What's Included

• CO2 Indicator Clip On Vial

Frequently Asked Questions

Do I need suction cups to mount it?
No. The U-shaped design hangs on the edge of your aquarium and stays in place without suction cups.

What does it tell me about my tank?
It shows the CO2 level in your aquarium through a colour-changing indicator, so you can quickly judge whether CO2 or water replacement needs attention.

Is it a drop checker?
Yes. It is a hang-on drop checker, made for monitoring CO2 levels in aquariums.

Will it help my aquatic plants?
It helps you keep an eye on CO2 so you can maintain conditions that suit your plants and fish. It is a monitoring tool and does not add or remove CO2 itself.

How quickly can I read it?
The colour-changing indicators are designed to be read at a glance, so a quick look at the tank is all it takes.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

Enjoy the convenience of collection points and lockers! 📦

No more waiting at home or at work for your delivery. Simply choose a collection locker or pickup point and collect your order when it suits you.

Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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Collection timeframes:

• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

If a PUDO parcel is not collected within 36 hours, it will automatically be transferred to the nearest PUDO Kiosk or Depot at no additional cost. The parcel will then be held there for approximately 2 days before being returned.

Please ensure you collect your parcel within the applicable collection period. Uncollected parcels will be returned to the sender, and additional shipping charges may apply should the order need to be resent.